These ancient sacred grounds granted amnesty to those who managed to reach them.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

This black shoreline is made up of exploded lava particles.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

A 115-year-old restored German dining hall awaits those who venture beneath the Minnesota State Capitol.

This double-arched masonry highway bridge is the only structure of its kind in Minnesota.

This statue commemorates the meeting of the most influential minds of the women’s rights movement.

What remains of the simple red brick chapel where the women's rights movement began.

A near tragic event on this bridge helped inspire the classic film "It's a Wonderful Life."

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

In northern Ohio, the glorious past of America's trains is on full display.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

Lake Champlain Bridge, the recently demolished and rebuilt bridge where they filmed "What Lies Beneath".

The seat of Buffalo government is a gorgeous Art Deco palace.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Buddha shrines hide within dark tunnels at this unique forest temple.

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

This old residential building was once the largest flour mill in the world.

This kaleidoscopic mural shows Bob Dylan throughout his transition from young troubadour to Nobel laureate.